<template>
  <div>
    <h1>{{id ? '编辑': '创建'}}广告位</h1>
    <el-form label-width="120px"
             @submit.native.prevent="save">

      <el-form-item label="广告名称">
        <el-input v-model="model.name"></el-input>
      </el-form-item>
      <el-form-item label="广告">
        <el-button size="small"
                   @click="model.items.push({})"><i class="el-icon-plus"></i>添加广告</el-button>
        <el-row type="flex"
                style="flex-wrap:wrap">
          <el-col :md="12"
                  v-for="(item,index) in model.items"
                  :key="index">
            <el-form-item label="跳转链接(url)">
              <el-input v-model="item.url"></el-input>
            </el-form-item>
            <el-form-item label="图片"
                          style="margin-top:0.5rem">
              <el-upload class="avatar-uploader"
                         :action="$http.defaults.baseURL +  '/upload'"
                         :show-file-list="false"
                         :on-success="res => $set(item,'image',res.url)">
                <img v-if="item.image"
                     :src="item.image"
                     class="avatar">
                <i v-else
                   class="el-icon-plus avatar-uploader-icon"></i>
              </el-upload>
            </el-form-item>
            <el-form-item>
              <el-button size="small"
                         type="danger"
                         @click="model.items.splice(index,1)">删除</el-button>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form-item>

      <el-form-item>
        <el-button type="primary"
                   native-type="submit">保存</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  props: {
    id: {}
  },
  data () {
    return {
      model: {
        items: []
      },
    }
  },
  created () {
    this.id && this.fetch()
  },
  methods: {
    async save () {
      let res = {}
      console.log(res)
      if (this.id) {
        res = await this.$http.put(`rest/ads/${this.id}`, this.model)
      } else {
        res = await this.$http.post('rest/ads', this.model)
      }
      this.$router.push('/ads/list')
      this.$message({
        type: 'success',
        message: '成功'
      })
    },
    async fetch () {
      const res = await this.$http.get(`rest/ads/${this.id}`)
      this.model = Object.assign({}, this.model, res.data)
    },
  }
}
</script>
